<template>
  ziCar: {{ ziCar }}
  <button @click="emit('haEmit', ziCar)">mitt</button>
  <hr />
</template>
<script setup lang="ts">
import { ref } from "vue";
let ziCar = ref("car 奔驰cc");
let emit = defineEmits(["haEmit"]);
</script>
<style lang="scss" scoped></style>
